﻿<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>检测浏览器浏览过的站点数</title>
    <script type="text/javascript" language="JavaScript">
            let times=history.length;
            document.write('此浏览器已经去过'+times+'个站了。');
    </script>
</head>
<body>

</body>
</html>